Milking stool



April 20, 1937. AJMONEFF MILKING STOOL Original Filed March 25, 1935 Fig. 4-

Fi 5. Enventor Cecil A. McNeffflm (Ittorneg Patented Apr. 20, 1937 UNITED STATES PATENT OFFICE MILKING STOOL Cecil A. McNefi, Portland, 'Oreg.

1 Claim.

My invention relates to improvements in milking stools in which the component parts are so formed and fabricated as to permit of convenient packing for shipment before final assembly for use and as well to certain novel structural features.

The principal object of my invention is to provide a milking stool of superior utility and durability capable of convenient transportation o and use and economical manufacture.

A second object is the provision for sterilization with steam or hot water without injury to the stool.

Other objects and advantages of my invention 1.; will be apparent in the following discourse wherein the significance of the reference characters in the accompanying drawing, details of construction of a typical stool embodying my invention, and the particular advantages thereof are explained.

Figure 1 represents a view in perspective of the stool assembled ready for use.

Figure 2 represents a view of the side of the stool with the top portion in section to reveal the structure.

Figure 3 represents a view of the end of the stool.

Figure 4 represents a view of the top of the stool with the seat removed to reveal the structure.

Figure 5 represents a view of an end marked out of a typical piece of material partially formed from which the frame is fabricated.

The essence of my invention consists in the forms of the several parts adapted for manufacture by simple bending operations, and which in the final form provides certain structural advantages as well as economies of material.

The frame of the stool is made of two pairs of symmetrical members comprising two end-frames I and 2 and two. diagonal members 3 and 4, all pivotally joined at 5, 6, and I, and detachably secured at 8 and 9 by means of bolts as I!) in Figure 3, to form the completed frame. A formed 4.5 wood seat II is secured to both end-frames by bolts as l0, l2, and I3.

In detail, the end-frames l and 2 and the diagonal members 3 and 4 are preferably made of aluminium alloy bars of rectangular cross-section bent to form the structure shown.

In Figure 5 is illustrated the method of laying out the pattern of an end of a frame bar before bending. Two intersecting lines a and b including a right angle or less are produced across the bar as indicated to determine the position of the bends necessary to produce the forms illustrated.

It will be apparent that the line a must lie in both those planes in which the portions of an end-frame as 14 and I! in Figure 3 lie in the final form, and the line 1) must lie in both those planes with which the portions I1 and I6 lie. Thus, the continuous appearance of the diagonal parts as 3 and H in Figure 2 is provided for. Also the end view as represented by Figure 3 is characterized by symmetrical diagonal parts as I7 and I8 connecting the feet formed by the portions M of the end-frames.

These effects are not merely ornamental but provide for a minimum material requirement and minimum values of structural strains, thus affording a maximum strength of a stool of the general design which allows of the use of relatively costly aluminium alloy in the frame to provide the desirable quality of lightness of weight.

The seat is formed of wood sawn by bandsaw machine from a block of wood fed to the saw in successive arcs of the same radius so that a seat is made with each passage of the saw through the wood block. The seats so made are characterized by two cylindrical surfaces of equal radii which, of course, provide that the seat will be thicker in the middle portion than on the edges as shown in exaggerated degree in Figure 3.

The bolts l0 serve the dual purpose of securing the seat and securing the ends of the diagonals 3 and 4.

The diagonals 3 and 4 are formed with twisted and bent upper portions providing for alignment thereof with the respective places of attachment therefor on the end-frames l and 2.

The particular forms of the frames and seat and materials from which the same are made each contribute definite advantages which in the aggregate result in a highly desirable piece of dairy equipment available at reasonable cost.

Having described my invention, what I claim is:

A milking stool comprising, two similar aluminium alloy end-frames each formed from a straight bar to provide in the middle thereof an elevated transverse portion, and by successive bendings, two oppositely disposed upright portions, two lower horizontally disposed portions, two diagonally disposed portions extending inwardly and upwardly to" apposition and two apposed terminally disposed portions; two aluminium alloy diagonal members pivotally joined medially of the ends thereof and pivotally joined at the lower extremities thereof to said endframes at the apposed terminal portions of said end-frames and detachably secured at opposite ends thereof to said elevated transverse portions of said end-frames respectively; a wood seat having cylindrical upwardly curved upper and lower surfaces of equal radii; and bolts detachably securing said seat upon said frames.

CECIL A. McNEFF. 

